LangFang ChunHui Environmental Protection Building Materials Co., Ltd

Product performance -->>

1、 Specification of air duct board

Type	Thickness mm	Length mm	Width mm	Core density kg/m3	Thickness of aluminium paper mm	tgj jg kg/m2	Range of application
Rang of performance	20-50	≤16000	1220	35-50	50-120		Various kinds of air duct
Normal type	20	4000	1200	40	80	1.40	Low speed air duct
Quasi-power type	20	4000	1200	45	100	1.65	Middle speed air duct
Super-power type	20	4000	1200	50	120	1.91	High speed air duct
Notes：1.The thickness, length, width, density of air duct and the thickness of aluminium paper can be made according to customer ' s request. If there are no special demand, the product can be made to our standards. 　　　　　　　 2. Form of packaging: 10 pieces of per bundle, bundled by plastic belt or packaged by plastic film.

2、 The main performance parameters

Type	Contents	Performances	Contents
Flame Retardancy	Difficult to burn Ｂ1( GB8624 )	Thermal conductivity	0.021(0.018-0.023)w/m.k
Compressive strength	210Kpa( 180-250)	Noise volume	18dB(A)
Flexural strength	1050Kpa	Wind friction	2.30Pa/m(8m/s时)
Sheet tensile strength	500Kpa	Temperature application	-40℃～+90℃
Tensile bond strength	480Kpa	Wind pressure application	≤1500pa; ≤15m/s
Peel strength Aluminium foil	230Kpa( 210-255 )	Closed foam rate	＞96%
Dimensional stability	≤3.04%(65℃72hr85RH%)	Pipeline connection	Direct cementation
Water obsorption	≤4%( v/v )

3、 Comparison of different products

Code	performance	Galvanized metal ＋ rubber	GRP ＋ rubber plastics	Chunhui air duct	Fiberglass composite Aluminium foil “ super air duct ”	Phenolic composite air duct
01	Phenolic composite air duct	0.044w/m.k common	0.044w/m.k common	0.021w/m.k best	0.038w/m.k common	0.034w/m.k better
02	Environmental performance	irritant	irritant	green	Fibers containing allergens	Containing carcinogens
03	Beautiful extent	Black Difficult to see	Black Difficult to see	Beautiful/ colorful	Single color	Single color
04	Intelligent controller			Intelligence Regulation storm
05	Carrying Capacity	Soft 0.2kg/cm2	Soft 0.2kg/cm2	0.28kg/cm2	0.3kg/cm2	0.3kg/cm2
06	Insulation materials	Soft plastic foam	Soft plastic foam	Polymer PIR foam	Inorganic glass fibers	Phenolic
07	leakage	10％	5％	2％	3-8％	3％
08	Unit weight	11kg/m2(25mm)	14kg/m2(29)	1.4kg/m2(20mm)	6.4kg/m2(25mm)
09	Life	Rust in 3-6 years	Rust in 6 years	For more than 30 years	10 years,not waterproof
10	Moisture Resistant	Water absorption 3.0％	Water absorption 3.0％	Water absorption ＜2%	Water absorption ＞15%
11	Cleansing properties	No dust	No dust	Polymer, no dust, Can be used for Clean air conditioning	Containing fiberglass,Can not be used for Clean air conditioning	Containing phenolic dust, can not be used for clean air conditioning
12	Hoisting gap	Required from all 10 cm	Required from all 5 cm	Bond can, no need flange	Need flange	Need flange
13	Installation	Labor ntensive and time consuming	Labor intensive and time consuming	Simple Controllable	Simple Controllable	Simple Controllable
14	Flange spacing	2-3 meters	2-3 meters	4-6 meters Saving hours and materials	4-6 meters Saving hours and materials	3 meters
15	Bond strength	Rubber, Easy to crack	Rubber, Easy to crack	Integration after High presser foaming, aluminium foil difficult peeling	Glue bonding, aluminium foil easy peeling after heating	Glue bonding, aluminium foil easy peeling after heating
16	rust	Easily orroded	Easily aging	No corroded No aging	Easily foaming	Easily powder split
17	Noise performance	Noise in the wind road , need silencer	Noise in the wind road , need silencer	Down noise18dB(A), quirt wind road, need no silencer	Need no silencer	need silencer
18	Flame retardancy	Difficult to burn B1	Difficult to burn B1	Difficult to burn B1	Not burning	Difficult to burn B1
19	maintenance	Frequent and complex	Frequent and complex	Almost not	Need regular maintenance	Need regular maintenance
20	Temperature application	-45℃～+85℃	-45℃～+85℃	-40℃～+90℃	-45℃～+60℃	-45℃～+60℃
21	Re-utilization	0	0	90％	50％
22	Initial investment	100％	90％	80％

3、 Flowchart of construction